Natural prostaglandins (PG) F-2 alpha and E-1 as well as (+)-cloprostenol were regioselectively Il-acylated using Novozym(R) 435 as a catalyst and vinyl acetate as an acyl donor. Unlike the above compounds the 15-OH group of PGE(2) was also acylated with a significant velocity under the same conditions. The enantiospecificity of the lipase-catalysed 11-acetylation of cloprostenol was established by separate treatment of (+)- and (-)-cloprostenols. (C) 1999 Elsevier Science Ltd. All rights reserved.
Derivatives of 9-oxo-13-trans-prostenoic acid esters
申请人:American Cyanamid Company
公开号:US04044043A1
公开(公告)日:1977-08-23
This disclosure describes homologues, analogues, congeners, and derivatives of 9-oxo-13-trans-prostenoic acid and of 9-hydroxy-13-trans-prostenoic acid, having antimicrobial activity and prostaglandin-like hypotensive activity.
Natural prostaglandins (PG) F-2 alpha and E-1 as well as (+)-cloprostenol were regioselectively Il-acylated using Novozym(R) 435 as a catalyst and vinyl acetate as an acyl donor. Unlike the above compounds the 15-OH group of PGE(2) was also acylated with a significant velocity under the same conditions. The enantiospecificity of the lipase-catalysed 11-acetylation of cloprostenol was established by separate treatment of (+)- and (-)-cloprostenols. (C) 1999 Elsevier Science Ltd. All rights reserved.